232311222 has 96 divisors (see below), whose sum is σ = 626240160. Its totient is φ = 61148160.

The previous prime is 232311221. The next prime is 232311223. The reversal of 232311222 is 222113232.

It is an interprime number because it is at equal distance from previous prime (232311221) and next prime (232311223).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 232311195 and 232311204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232311221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41104 + ... + 46412.

It is an arithmetic number, because the mean of its divisors is an integer number (6523335).

Almost surely, 2^232311222 is an apocalyptic number.

232311222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 232311222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313120080).

232311222 is an abundant number, since it is smaller than the sum of its proper divisors (393928938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232311222 is a wasteful number, since it uses less digits than its factorization.

232311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5355 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232311222 is about 15241.7591504393. The cubic root of 232311222 is about 614.7380046042.

Adding to 232311222 its reverse (222113232), we get a palindrome (454424454).

The spelling of 232311222 in words is "two hundred thirty-two million, three hundred eleven thousand, two hundred twenty-two".